The U.S. Air Force relies on effective leadership to complete its mission. The U.S. Air Force Academy exists to develop leaders of character for the Air Force through a four-year program. Part of this program involves cadets participating in leadership positions. By exploring nine types of cadet leadership positions, this dissertation aims to assist the Academy in assessing the value of admission criteria, awarding leadership positions, and designing leadership position experiences. Informing decisions in these areas is likely to improve the Academy's ability to develop effective leaders for the Air Force. This dissertation provides evidence of a positive relationship between participation in a cadet line position and promotion to Lieutenant Colonel. This positive relationship existed for individuals in both rated and non-rated career fields. The magnitude of the relationship varied significantly according to other individual characteristics such as military performance average and grade point average. Participation rates for line positions varied according to demographics such as race, gender, and prep school attendance. Most admission information related to leadership was positively associated with participation in a line leadership position at the Academy. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]